CN202719301U - Threaded-connection-type spheroidal graphite cast iron flange pipe - Google Patents
Threaded-connection-type spheroidal graphite cast iron flange pipe Download PDFInfo
- Publication number
- CN202719301U CN202719301U CN 201220339351 CN201220339351U CN202719301U CN 202719301 U CN202719301 U CN 202719301U CN 201220339351 CN201220339351 CN 201220339351 CN 201220339351 U CN201220339351 U CN 201220339351U CN 202719301 U CN202719301 U CN 202719301U
- Authority
- CN
- China
- Prior art keywords
- cast iron
- spheroidal graphite
- graphite cast
- threaded
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model discloses a threaded-connection-type spheroidal graphite cast iron flange pipe which is provided with a pipe body. The threaded-connection-type spheroidal graphite cast iron flange pipe is characterized in that two ends of the pipe body are threadedly connected with a flange disc, and a plurality of uniformly distributed bolt mounting holes are formed on the flange disc. According to the utility model, the problems that the traditional spheroidal graphite cast iron flange pipes are installed together by adopting the way of welding, the welding construction is difficult, the weld joint is easy to crack, stress release can generate cracks after welding, the iron cast pipes leak water and are low in yield and the like are solved, and the threaded-connection-type spheroidal graphite cast iron flange pipe is mainly used as a conveying pipe in the facilities of city water supply, drainage and the like.
Description
(i) technical field: the utility model relates to the spheroidal graphite cast iron flanged pipe, especially a kind of screw connected spheroidal graphite cast iron flanged pipe.
(ii) background technique: Urbanization in China is accelerated in recent years, the extensive expansion of rural area water drainage-supply system enlarging, in addition along with the raising of people to spheroidal graphite cast iron flanged pipe degree of recognition, many grassroot projects select the spheroidal graphite cast iron flanged pipe to substitute other tubing such as original gray cast iron tube, and spheroidal graphite cast iron flanged pipe demand is and continues the situation that increases substantially.
At present, traditional spheroidal graphite cast iron flanged pipe generally adopts welded and installed together, welding can exist weld cracking and welding stress to discharge problems such as being difficult to control, after weld cracking, just must be repaired the cast iron flange pipe, but can there is following problems after repairing: the poor thermal conductivity of (1) cast iron itself, adopt the electrode for cast iron soldering, easily around welding zone, produce larger temperature gradient, can produce localized stress, crackle occurs again; (2) through the pipe fitting after soldering repeatedly, around the soldering district, metallographic structure changes, and tensility reduces thus; (3) the soldering pipe fitting suppress qualified after, and do not mean that seepy question solves, usually because in transportation, installation process collide with and crackle occurs in sometimes hot and sometimes cold external environment condition again.Therefore, designing a kind of screw connected spheroidal graphite cast iron flanged pipe that can address the above problem well extremely is necessary.
(iii) summary of the invention: the purpose of this utility model be exactly to solve that traditional spheroidal graphite cast iron flanged pipe adopts that welding is fitted together, the welding difficulty is large, weld seam easily ftractures, post-weld stress release can crack and cause water leakage of cast iron pipe and the problem such as up-to-standard rate is lower, and a kind of screw connected spheroidal graphite cast iron flanged pipe is provided.
Concrete scheme of the present utility model is: for traditional spheroidal graphite cast iron flanged pipe, improved, it has body, it is characterized in that: the two ends of the described body flange plate that has been threaded all has some uniform bolt mounting holes on flange plate.
Convenient fine setting flange plate when the utility model is installed in building site, make the connection of spheroidal graphite cast iron flange pipe more firm, the utility model makes the tail end of the tail end of body higher than flange plate while being threaded on body by flange plate, height difference h between the two is designed to 1～3mm.
The utility model is simple in structure, easy to use, and centrifugal ductile cast iron pipes and spheroidal graphite cast iron flange are threaded togather, dock and compress and install additional sealing gasket and realize being tightly connected between pipe fitting by tube wall, connect more firmly, water leakage phenomenon can not occur, the reliability of use improves.
(4) accompanying drawing explanation:
Fig. 1 is main sectional view of the present utility model.
In figure: 1-flange plate, 2-body, 3-bolt mounting holes.
(v) embodiment:
Referring to Fig. 1, the utlity model has body 2, particularly: the two ends of described body 2 flange plate 1 that has been threaded all has some uniform bolt mounting holes 3 on flange plate 1.The tail end that will guarantee body 2 when flange plate 1 is threaded in to the two ends of body 2 is higher than the tail end of flange plate 1 to facilitate fine setting flange plate 1, and height difference h between the two is designed to 2mm; Formed the utility model.
Claims (2)
1. a screw connected spheroidal graphite cast iron flanged pipe, have body, it is characterized in that: the two ends of the described body flange plate that has been threaded all has some uniform bolt mounting holes on flange plate.
2. a kind of screw connected spheroidal graphite cast iron flanged pipe according to claim 1, it is characterized in that: the tail end of described body is higher than the tail end of flange plate, and height difference h between the two is 1～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339351 CN202719301U (en) | 2012-07-13 | 2012-07-13 | Threaded-connection-type spheroidal graphite cast iron flange pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339351 CN202719301U (en) | 2012-07-13 | 2012-07-13 | Threaded-connection-type spheroidal graphite cast iron flange pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202719301U true CN202719301U (en) | 2013-02-06 |
Family
ID=47621125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220339351 Expired - Fee Related CN202719301U (en) | 2012-07-13 | 2012-07-13 | Threaded-connection-type spheroidal graphite cast iron flange pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202719301U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885072A (en) * | 2017-02-21 | 2017-06-23 | 陈洁 | A kind of assembling pipe joint with annular tapered end |
| CN114811221A (en) * | 2022-05-07 | 2022-07-29 | 山东京唐金属制品有限公司 | Novel flange connecting method for cast pipe |
-
2012
- 2012-07-13 CN CN 201220339351 patent/CN202719301U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885072A (en) * | 2017-02-21 | 2017-06-23 | 陈洁 | A kind of assembling pipe joint with annular tapered end |
| CN114811221A (en) * | 2022-05-07 | 2022-07-29 | 山东京唐金属制品有限公司 | Novel flange connecting method for cast pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20190713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |